PZ8909 non-contact multi-function sound and light alarm smart voltage induction test pen electroscopeFeatures:The battery can be replaced by pulling the battery cover, which is simple and convenient.It can automatically distinguish the zero line and the live line.There are sound and alarm LED functions.Three kinds of sensitivity (high, medium and low) can be automatically selected.It is a professional non-contact AC voltage detector.Voltage sensitivity is 12V to 1000V AC.Adjustable AC voltage sensitivity.There are audible and visual instructions.It will automatically shut down.Safe, professional and easy to use.Small and compact pen, easy to carry.Specification:Measuring range: 12~1000VBattery: 2*1.5V AAA battery (not included)Material: ABSSize:155*24mmNote:The initial default AC voltage detection range of the tester: about 48~1000OV.Press the AC voltage detection range switch button (S), the detection range indicator will light up, and the detectable voltage range of the tester is about 12~1000V.Press the AC voltage detection range switch button (S) again, the detection range indicator light goes out, and the detectable voltage range of the tester is about 48~1000ov.Automatic shutdown function If the tester does not operate within 5 minutes and the tester does not detect a voltage signal, the tester will automatically turn off the power.Battery undervoltage indication When the battery voltage is lower than 2.6V, the power indicator flashes 3 times, and the buzzer sounds and then goes out. Please replace the battery in time.Package Included:1*Smart non-contact light tester